by Francesc Xavier Alegria Folch, Lluïsa Girondo Pérez · Editorial Casals · tapa blanda · ISBN 9788421831694
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«Encaix de nombres 9» is a math workbook by Francesc Xavier Alegria Folch and Lluïsa Girondo Pérez (Casals, paperback, 32 pages, in Catalan).
Activity workbook from the Encaix collection for elementary math. Its aim is to gain agility in mental and written calculation through reasoned practice: working on relationships between operations, their properties, decompositions, division by a single digit, rounding, estimations and calculations with euros.
It is the ninth title in the Encaix collection, aimed at the second cycle of Elementary Education (ages 8-10); first edition published in December 2005.
For second-cycle elementary students (ages 8-10) working on math in Catalan, as school material or for reinforcement.
